I would like to import Txhashes to my cold ETH wallet. The tx's are done on a connected device and transferred securely via QR codes. I can do this with BTC in Electrum but have found no way of doing it with MEW or geth. I would be happy to use a bit of JavaScript if needs be.
I realise I can check tx's with a block explorer, I would just like to keep records in the cold wallet.